Correlation Between NOAA Predicted Currents and CODAR Observed Currents

An effective correlation can only be carried out in Matlab if both data sets have the same length (same amount of data points), therefore both time series – NOAA predicted currents at Punta Ostiones and CODAR observed currents – were subjected to the Fast Fourier Transform method and subsequently interpolated at 1-minute intervals. Then data was analyzed and plotted within the same period of time – April 1, 2009 to May 31, 2009. Correlation was performed using corrcoef function, which yielded a value of 0.69. It is worth noting that the algorithm is now set to calculate M2, S2, N2, K2, K1, O1, P1, Q1 tidal constituents as advised by Dr. Jorge Capella.

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